Mercurial Repositories > eric / file comparison
comparison: eric6/Helpviewer/Network/QtHelpAccessHandler.py
eric6/Helpviewer/Network/QtHelpAccessHandler.py
- changeset 6942
- 2602857055c5
- parent 6645
- ad476851d7e0
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| 6941:f99d60d6b59b | 6942:2602857055c5 |
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 - 2019 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a scheme access handler for QtHelp. | |
| 8 """ | |
| 9 | |
| 10 from __future__ import unicode_literals | |
| 11 | |
| 12 import mimetypes | |
| 13 import os | |
| 14 | |
| 15 from PyQt5.QtCore import QByteArray | |
| 16 | |
| 17 from .SchemeAccessHandler import SchemeAccessHandler | |
| 18 | |
| 19 from .NetworkReply import NetworkReply | |
| 20 | |
| 21 QtDocPath = "qthelp://com.trolltech." | |
| 22 | |
| 23 ExtensionMap = { | |
| 24 ".bmp": "image/bmp", | |
| 25 ".css": "text/css", | |
| 26 ".gif": "image/gif", | |
| 27 ".html": "text/html", | |
| 28 ".htm": "text/html", | |
| 29 ".ico": "image/x-icon", | |
| 30 ".jpeg": "image/jpeg", | |
| 31 ".jpg": "image/jpeg", | |
| 32 ".js": "application/x-javascript", | |
| 33 ".mng": "video/x-mng", | |
| 34 ".pbm": "image/x-portable-bitmap", | |
| 35 ".pgm": "image/x-portable-graymap", | |
| 36 ".pdf": "application/pdf", | |
| 37 ".png": "image/png", | |
| 38 ".ppm": "image/x-portable-pixmap", | |
| 39 ".rss": "application/rss+xml", | |
| 40 ".svg": "image/svg+xml", | |
| 41 ".svgz": "image/svg+xml", | |
| 42 ".text": "text/plain", | |
| 43 ".tif": "image/tiff", | |
| 44 ".tiff": "image/tiff", | |
| 45 ".txt": "text/plain", | |
| 46 ".xbm": "image/x-xbitmap", | |
| 47 ".xml": "text/xml", | |
| 48 ".xpm": "image/x-xpm", | |
| 49 ".xsl": "text/xsl", | |
| 50 ".xhtml": "application/xhtml+xml", | |
| 51 ".wml": "text/vnd.wap.wml", | |
| 52 ".wmlc": "application/vnd.wap.wmlc", | |
| 53 } | |
| 54 | |
| 55 | |
| 56 class QtHelpAccessHandler(SchemeAccessHandler): | |
| 57 """ | |
| 58 Class implementing a scheme access handler for QtHelp. | |
| 59 """ | |
| 60 def __init__(self, engine, parent=None): | |
| 61 """ | |
| 62 Constructor | |
| 63 | |
| 64 @param engine reference to the help engine (QHelpEngine) | |
| 65 @param parent reference to the parent object (QObject) | |
| 66 """ | |
| 67 SchemeAccessHandler.__init__(self, parent) | |
| 68 | |
| 69 self.__engine = engine | |
| 70 | |
| 71 def __mimeFromUrl(self, url): | |
| 72 """ | |
| 73 Private method to guess the mime type given an URL. | |
| 74 | |
| 75 @param url URL to guess the mime type from (QUrl) | |
| 76 @return mime type for the given URL (string) | |
| 77 """ | |
| 78 path = url.path() | |
| 79 ext = os.path.splitext(path)[1].lower() | |
| 80 if ext in ExtensionMap: | |
| 81 return ExtensionMap[ext] | |
| 82 else: | |
| 83 return "application/octet-stream" | |
| 84 | |
| 85 def createRequest(self, op, request, outgoingData=None): | |
| 86 """ | |
| 87 Public method to create a request. | |
| 88 | |
| 89 @param op the operation to be performed | |
| 90 (QNetworkAccessManager.Operation) | |
| 91 @param request reference to the request object (QNetworkRequest) | |
| 92 @param outgoingData reference to an IODevice containing data to be sent | |
| 93 (QIODevice) | |
| 94 @return reference to the created reply object (QNetworkReply) | |
| 95 """ | |
| 96 url = request.url() | |
| 97 strUrl = url.toString() | |
| 98 | |
| 99 # For some reason the url to load is already wrong (passed from webkit) | |
| 100 # though the css file and the references inside should work that way. | |
| 101 # One possible problem might be that the css is loaded at the same | |
| 102 # level as the html, thus a path inside the css like | |
| 103 # (../images/foo.png) might cd out of the virtual folder | |
| 104 if not self.__engine.findFile(url).isValid(): | |
| 105 if strUrl.startswith(QtDocPath): | |
| 106 newUrl = request.url() | |
| 107 if not newUrl.path().startswith("/qdoc/"): | |
| 108 newUrl.setPath("qdoc" + newUrl.path()) | |
| 109 url = newUrl | |
| 110 strUrl = url.toString() | |
| 111 | |
| 112 mimeType = mimetypes.guess_type(strUrl)[0] | |
| 113 if mimeType is None: | |
| 114 # do our own (limited) guessing | |
| 115 mimeType = self.__mimeFromUrl(url) | |
| 116 | |
| 117 if self.__engine.findFile(url).isValid(): | |
| 118 data = self.__engine.fileData(url) | |
| 119 else: | |
| 120 data = QByteArray(self.tr( | |
| 121 """<title>Error 404...</title>""" | |
| 122 """<div align="center"><br><br>""" | |
| 123 """<h1>The page could not be found</h1><br>""" | |
| 124 """<h3>'{0}'</h3></div>""").format(strUrl).encode("utf-8")) | |
| 125 return NetworkReply(request, data, mimeType, self.parent()) |
